1. Tardigrade
  2. Question
  3. Chemistry
  4. Accumulation of lactic acid (HC3H5O3), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M aqueous solution, lactic acid is 3.7 % dissociates. The value of dissociation constant, Ka, for this acid will be :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Accumulation of lactic acid $(HC_3H_5O_3$), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a $0.10\, M$ aqueous solution, lactic acid is $3.7\%$ dissociates. The value of dissociation constant, $K_a$, for this acid will be :

NEETNEET 2013Equilibrium

Solution:

Degree of dissociation, $\alpha=3.7=0.037$
$K_{a}=\alpha^{2} C=(0.037)^{2} \times 0.10 $
$=1.369 \times 10^{-4} \approx 1.4 \times 10^{-4}$